Method and apparatus for counting particles of particulate mater

Details Method and apparatus for counting particles of particulate mater Method and apparatus for counting particles of particulate mater

1977-06-10

1979-06-05

Tokar, M.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250221, 250222PC, G01D 2104

Patent

active

041574680

ABSTRACT:
Infrared or visible light radiation is arranged to traverse substantially the entire cross sectional area of a passageway as a wide, flat beam having a thickness not substantially exceeding the minimum thickness of particles to be counted and a width substantially greater than the thickness, and is detected as a field of radiation of substantially constant intensity. When a particle falls by gravity through any portion of the field, the detected change in intensity functions to activate an electronic counter which provides a direct digital readout of the number of particles passing through the field in a given period of time, distance, or area.

REFERENCES:
patent: 3365699 (1968-01-01), Foster
patent: 3537091 (1970-10-01), Schenkenberg

Affiliated with

Also associated with

Rating

Method and apparatus for counting particles of particulate mater does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for counting particles of particulate mater, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for counting particles of particulate mater will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1709179